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National Spatial Reference System

From Wikipedia, the free encyclopedia

A survey marker (metal disk on square concrete pad) and commemorating plaque that is part of the NSRS.[1][2]

The National Spatial Reference System (NSRS), managed by the National Geodetic Survey (NGS), is a coordinate system that includes latitude, longitude, elevation, and other values. The NSRS consists of a National Shoreline, the NOAA CORS Network[3] (a system of Global Positioning System Continuously Operating Reference Stations), a network of permanently marked points, and a set of models that describe dynamic geophysical processes affecting spatial measurements. The system is based on the datums NAD 83 and NAVD 88.[4]

The North American-Pacific Geopotential Datum of 2022 (NAPGD2022) is a geodetic datum set produced by the U.S. National Geodetic Survey to improve the National Spatial Reference System (NSRS).[5][6][7] It will replace the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88) with a new geometric reference frame and geopotential datum.[8] In association with this release, a new, time-dependent geoid model, GEOID2022, will also be released.[9] The release date for these models was planned for 2022 but they have been delayed.

See also

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References

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Attribution: contains public domain material copied from ngs.noaa.gov

  1. "News: Lewis & Clark". NGS/NOAA. September 24, 2004. Retrieved November 20, 2025.
  2. "NGS Datasheet for marker DH4418 @ Chamberlain, SD".
  3. "NGS - NCN Homepage". geodesy.noaa.gov. Retrieved April 19, 2022.
  4. "The National Spatial Reference System". National Geodetic Survey. Retrieved April 3, 2013.
  5. "Updated Implementation Timeline for the Modernized National Spatial Reference System (NSRS)". Federal Register. October 9, 2024. Retrieved November 20, 2024.
  6. "Delayed Release of Modernized NSRS, New Datums". geodesy.noaa.gov. Retrieved February 1, 2022.
  7. "Frequently Asked Questions - FAQ - New Datums - National Geodetic Survey". geodesy.noaa.gov. Retrieved February 1, 2022.
  8. "New Datums - National Geodetic Survey". www.ngs.noaa.gov. Retrieved February 1, 2022.
  9. "Naming Convention - New Datums - National Geodetic Survey". geodesy.noaa.gov. Retrieved April 16, 2024.
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